Adaptive PVD Steganography Using Horizontal, Vertical, and Diagonal Edges in Six-Pixel Blocks

Table 1

Results of existing techniques.

Images; 512 × 512	Swain’s 2 × 2-pixel block adaptive PVD [13]				Luo et al.’s 1 × 3-pixel block adaptive PVD [12]
	PSNR	Capacity		BPB	PSNR	Capacity		BPB
Lena	45.04	1341191	0.999	1.70	48.79	229037	0.999	0.29
Baboon	47.13	1489945	0.999	1.89	48.03	611197	0.999	0.77
Peppers	45.73	1350251	0.999	1.71	48.32	264058	0.999	0.33
Jet	44.86	1267690	0.999	1.61	48.76	145755	0.999	0.18
Boat	46.08	1424967	0.999	1.81	48.20	389588	0.999	0.49
House	43.58	1339985	0.999	1.70	48.41	259413	0.999	0.32
Tiffany	45.23	1341498	0.999	1.70	48.70	165873	0.999	0.21
Average	45.37	1365075	0.999	1.61	48.45	294988	0.999	0.37